# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
# SPDX-FileCopyrightText: 2022 Samuel Tyler <samuel@samuelt.me>
#
# SPDX-License-Identifier: GPL-3.0-or-later

src_prepare() {
    default

    # Regenerate bison files
    sed -i '/yydestruct/d' perly.y
    rm -f perly.c perly.h
    bison -d perly.y
    mv perly.tab.c perly.c
    mv perly.tab.h perly.h

    # Regenerate other prebuilt header files
    rm -f proto.h pp.sym pp_proto.h perlapi.c perlapi.h opnames.h opcode.h \
        objXSUB.h embedvar.h global.sym
    for file in opcode embed keywords; do
        rm -f ${file}.h
        perl ${file}.pl
    done
    rm -f regnodes.h
    perl regcomp.pl
    rm -f ext/ByteLoader/byterun.h ext/ByteLoader/byterun.c ext/B/B/Asmdata.pm
    perl bytecode.pl
    rm -f warnings.h lib/warnings.pm
    perl warnings.pl

    # Regenerate prebuilt perl files
    rm -rf lib/unicode/Is lib/unicode/In lib/unicode/To lib/unicode/*.pl

    # Manpages
    rm -f lib/Pod/Man.pm

    # Workaround for some linking problems, remove if possible
    sed -i 's/perl_call_method/Perl_call_method/' ext/Data/Dumper/Dumper.xs
    sed -i 's/perl_call_sv/Perl_call_sv/' ext/Data/Dumper/Dumper.xs
    sed -i 's/sv_setptrobj/Perl_sv_setref_iv/' ext/POSIX/POSIX.xs

    # We are using non-standard locations
    sed -i "s#/usr/include/errno.h#${PREFIX}/include/bits/errno.h#" ext/Errno/Errno_pm.PL
}

src_compile() {
    make -j1 PREFIX="${PREFIX}"

    cd lib/unicode
    # We don't use the Makefile because $0 is encoded and it uses ./mktables.PL
    # whereas the original uses mktables.PL
    ../../miniperl -I../../lib mktables.PL
    cd ../..
}